Abstract
In process of gear power transmitters design, constructor is faced with well and badly structured problems. In the first case, it's easy to make mathematical model and to apply it. On other occasion, problem is very complex, and mathematical model can't be easily and effectively made. Solution for the problem of badly structured problems is in use of fuzzy logic. This paper presents an example for the use of fuzzy logic in gear power transmitters design. Determining the teeth number for small gear is being made by use of fuzzy expert system..
